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python: avoid use of HOST_BUILD_PREFIX 

Currently, the python-host.mk framework relies on HOST_BUILD_PREFIX to
refer to the $(STAGING_DIR)/host directory but using the HOST_BUILD_PREFIX
variable requires the use of include/host-build.mk which in turn includes
python-host.mk, leading to target redefinition errors.

In order to provide a global, uniform way to refer to the host staging
directory, LEDE introduced a new variable STAGING_DIR_HOSTPKG which points
to $(STAGING_DIR)/host for now with the purpose of eventually being able to
relocate that directory in the future.

This commit changes python-host.mk to ...
 - stop including include/host-build.mk (revert of #3423)
 - replace usages of $(HOST_BUILD_PREFIX) with $(STAGING_DIR_HOSTPKG)
 - warn and fallback to $(STAGING_DIR)/host if STAGING_DIR_HOSTPKG is
   unavailable

The fallback code will ensure that the python host build infrastructure
continues to work properly on older OpenWrt and LEDE versions until the
STAGING_DIR_HOSTPKG is fully settled in and can be removed some time
in the future.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
This commit is contained in:
Jo-Philipp Wich 2016-11-01 12:41:16 +01:00
parent e08d70d8aa
commit 73b7f55424
1 changed files with 8 additions and 5 deletions
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13
lang/python/files/python-host.mk
View File

@ -5,10 +5,13 @@
# See /LICENSE for more information.
#
# For HOST_BUILD_PREFIX
include $(INCLUDE_DIR)/host-build.mk
# Compatibility fallback for older OpenWrt and LEDE versions
ifeq ($(STAGING_DIR_HOSTPKG),)
$(warning STAGING_DIR_HOSTPKG is unset - falling back to $$(STAGING_DIR)/host)
STAGING_DIR_HOSTPKG := $(STAGING_DIR)/host
endif
HOST_PYTHON_DIR:=$(HOST_BUILD_PREFIX)
HOST_PYTHON_DIR:=$(STAGING_DIR_HOSTPKG)
HOST_PYTHON_INC_DIR:=$(HOST_PYTHON_DIR)/include/python$(PYTHON_VERSION)
HOST_PYTHON_LIB_DIR:=$(HOST_PYTHON_DIR)/lib/python$(PYTHON_VERSION)
@ -16,7 +19,7 @@ HOST_PYTHON_PKG_DIR:=/lib/python$(PYTHON_VERSION)/site-packages
HOST_PYTHON_BIN:=$(HOST_PYTHON_DIR)/bin/python$(PYTHON_VERSION)
HOST_PYTHONPATH:=$(HOST_PYTHON_LIB_DIR):$(HOST_BUILD_PREFIX)/$(HOST_PYTHON_PKG_DIR)
HOST_PYTHONPATH:=$(HOST_PYTHON_LIB_DIR):$(STAGING_DIR_HOSTPKG)/$(HOST_PYTHON_PKG_DIR)
define HostPython
if [ "$(strip $(3))" == "HOST" ]; then \
@ -47,7 +50,7 @@ define Build/Compile/HostPyRunHost
LDSHARED="$(HOSTCC) -shared" \
CFLAGS="$(HOST_CFLAGS)" \
CPPFLAGS="$(HOST_CPPFLAGS) -I$(HOST_PYTHON_INC_DIR)" \
LDFLAGS="$(HOST_LDFLAGS) -lpython$(PYTHON_VERSION) -Wl$(comma)-rpath=$(HOST_BUILD_PREFIX)/lib" \
LDFLAGS="$(HOST_LDFLAGS) -lpython$(PYTHON_VERSION) -Wl$(comma)-rpath=$(STAGING_DIR_HOSTPKG)/lib" \
_PYTHON_HOST_PLATFORM=linux2 \
$(3) \
, \